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arXiv · 1712.01428

Experimental study of quantum random number generator based on two independent lasers

Shi-Hai Sun·Feihu Xu
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Abstract

Quantum random number generator (QRNG) can produce true randomness by utilizing the inherent probabilistic nature of quantum mechanics. Recently, the spontaneous-emission quantum phase noise of the laser has been widely deployed for QRNG, due to its high rate, low cost and the feasibility of chip-scale integration. Here, we perform a comprehensive experimental study of phase-noise based QRNG with two independent lasers, each of which operates in either continuous-wave (CW) or pulsed mode. We implement QRNGs by operating the two lasers in three configurations, namely CW+CW, CW+pulsed and pulsed+pulsed, and demonstrate their tradeoffs, strengths and weaknesses.

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Shi-Hai Sun, Feihu Xu. 2017-12-05. Experimental study of quantum random number generator based on two independent lasers. https://doi.org/10.1103/physreva.96.062314

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